diff --git a/dist/main.cjs b/dist/main.cjs
index 26b2e6b..fb2c167 100644
--- a/dist/main.cjs
+++ b/dist/main.cjs
@@ -2811,7 +2811,7 @@ var require_dist_node5 = __commonJS({
     module2.exports = __toCommonJS2(dist_src_exports);
     var import_endpoint = require_dist_node2();
     var import_universal_user_agent = require_dist_node();
-    var VERSION = "8.1.2";
+    var VERSION = "8.1.4";
     var import_is_plain_object = require_is_plain_object();
     var import_request_error = require_dist_node4();
     function getBufferResponse(response) {
@@ -2911,7 +2911,15 @@ var require_dist_node5 = __commonJS({
           throw error;
         else if (error.name === "AbortError")
           throw error;
-        throw new import_request_error.RequestError(error.message, 500, {
+        let message = error.message;
+        if (error.name === "TypeError" && "cause" in error) {
+          if (error.cause instanceof Error) {
+            message = error.cause.message;
+          } else if (typeof error.cause === "string") {
+            message = error.cause;
+          }
+        }
+        throw new import_request_error.RequestError(message, 500, {
           request: requestOptions
         });
       });
diff --git a/dist/post.cjs b/dist/post.cjs
index 6ea70fb..6576ea6 100644
--- a/dist/post.cjs
+++ b/dist/post.cjs
@@ -2811,7 +2811,7 @@ var require_dist_node5 = __commonJS({
     module2.exports = __toCommonJS2(dist_src_exports);
     var import_endpoint = require_dist_node2();
     var import_universal_user_agent = require_dist_node();
-    var VERSION = "8.1.2";
+    var VERSION = "8.1.4";
     var import_is_plain_object = require_is_plain_object();
     var import_request_error = require_dist_node4();
     function getBufferResponse(response) {
@@ -2911,7 +2911,15 @@ var require_dist_node5 = __commonJS({
           throw error;
         else if (error.name === "AbortError")
           throw error;
-        throw new import_request_error.RequestError(error.message, 500, {
+        let message = error.message;
+        if (error.name === "TypeError" && "cause" in error) {
+          if (error.cause instanceof Error) {
+            message = error.cause.message;
+          } else if (typeof error.cause === "string") {
+            message = error.cause;
+          }
+        }
+        throw new import_request_error.RequestError(message, 500, {
           request: requestOptions
         });
       });
diff --git a/package.json b/package.json
index 3b8c15f..1e35a78 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "create-github-app-token",
   "private": true,
   "type": "module",
-  "version": "1.5.0",
+  "version": "1.5.1",
   "description": "GitHub Action for creating a GitHub App Installation Access Token",
   "scripts": {
     "build": "esbuild main.js post.js --bundle --outdir=dist --out-extension:.js=.cjs --platform=node --target=node16.16",